2³ × 5 × 521

Prime Factor Structure

Factorization String 2^3 × 5 × 521

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 46,980

Proper Divisor Sum 26,140

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #20809 ← → #20849

1 2 4 5 8 10 20 40 521 1,042 2,084 2,605 4,168 5,210 10,420 20,840

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

20,840 10,420 5,210 2,605 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413 1,240 620 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858

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